[AccessD] Function vs Sub

Don't know about VBA, but according to Bob Zale, the overhead in the 
PowerBasic compiler is exactly one Opcode.  :-)

-- 
Stuart


On 24 Feb 2009 at 9:09, jwcolby wrote:

> Yes, but "return anything" has an overhead implication.  At the machine code level, a function has a 
> storage location somewhere that is set to something when the function returns.  The code has to 
> explicitly set the value of the function return location to something.  So MAYBE that "return value 
> location" is being manipulated, even though when that "something" is "returned" to the caller, it is 
> not being placed into a set of ears.
> 
> If you explicitly set the return value of the function inside of the function then it definitely 
> WILL manipulate that return value location.  As an example, you might cause a function to return an 
> error code, even though in some cases the caller never checks for errors.
> 
> To be honest though, computers are so fast that worrying about that overhead doesn't make it onto my 
> radar.
> 
> John W. Colby
> www.ColbyConsulting.com